A fair point but also, if one wants to say "hey they didn't give context to their joke, when the poster deliberately removed it from its contextual home!", there's nothing that can stop them, but also, they shouldn't be surprised to find people asking them to understand the context before complaining about the lack of it.

Consider something like "I didn't know Stevie Wonder was blind, and it's therefore not my fault that I didn't get the joke about Stevie Wonder being blind."

Like, sure, maybe it's not, but also, it would hamper any joke if you had to explain all context.

A rabbi, a priest, and an Iman walk into a bar (a rabbi is a spiritual leader and officiant in the Jewish faith, Judaism is a monotheistic religion, a religion is a set of beliefs that characterize a worldview including but not limited to spirituality, ethics, morals, social conduct and worship of divine beings...)